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US2969372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycloalkylpyrazolo [3, 4-alpha] inden-4 [1h]-one derivatives
Assignee: Individual
•
Filing: 1959-10-01
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Granted: 1961-01-24
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Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Robert A Braun
- 👤 William A Mosher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:27
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A CHEMICAL COMPOUND HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
7 words
A CHEMICAL COMPOUND HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |